217664480

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{11243}}^1$

素因数の和:11280

約数の個数: 72

約数和(自身を含む): 565280856

約数和(自身を除く): 347616376

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 121, 160, 176, 220, 242, 352, 440, 484, 605, 880, 968, 1210, 1760, 1936, 2420, 3872, 4840, 9680, 11243, 19360, 22486, 44972, 56215, 89944, 112430, 123673, 179888, 224860, 247346, 359776, 449720, 494692, 618365, 899440, 989384, 1236730, 1360403, 1798880, 1978768, 2473460, 2720806, 3957536, 4946920, 5441612, 6802015, 9893840, 10883224, 13604030, 19787680, 21766448, 27208060, 43532896, 54416120, 108832240, 217664480]

約数ペア:

[(1, 217664480), (2, 108832240), (4, 54416120), (5, 43532896), (8, 27208060), (10, 21766448), (11, 19787680), (16, 13604030), (20, 10883224), (22, 9893840), (32, 6802015), (40, 5441612), (44, 4946920), (55, 3957536), (80, 2720806), (88, 2473460), (110, 1978768), (121, 1798880), (160, 1360403), (176, 1236730), (220, 989384), (242, 899440), (352, 618365), (440, 494692), (484, 449720), (605, 359776), (880, 247346), (968, 224860), (1210, 179888), (1760, 123673), (1936, 112430), (2420, 89944), (3872, 56215), (4840, 44972), (9680, 22486), (11243, 19360)]